Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he's managed to cure mice of analogs of PTSD and certain forms of blindness. On the horizon: neural prosthetics. Session host Juan Enriquez leads a brief post-talk Q and A. Topics: TEDTalks, TED, Talks, brain, neurology, science, technology, TED2011, 2011
In the quest to map the brain, many scientists have attempted the incredibly daunting task of recording the activity of each neuron. Gero Miesenboeck works backward -- manipulating specific neurons to figure out exactly what they do, through a series of stunning experiments that reengineer the way fruit flies percieve light. Topics: TEDTalks, TEDGlobal 2010, TED, Talks, biology, brain, neurology, science, 2010
Developmental disorders in children are typically diagnosed by observing behavior, but Aditi Shankardass knew that we should be looking directly at their brains. She explains how a remarkable EEG device has revealed mistaken diagnoses and transformed children's lives. Topics: TEDTalks, TED, Talks, children, medicine, neurology, science, technology, TEDIndia 2009, 2009
Neurologist and author Oliver Sacks brings our attention to Charles Bonnet syndrome -- when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon. Topics: TEDTalks, TED, Talks, biology, brain, medicine, mind, neurology, psychology, TED2009, 2009
Michael Shermer says the human tendency to believe strange things -- from alien abductions to dowsing rods -- boils down to two of the brain's most basic, hard-wired survival skills. He explains what they are, and how they get us into trouble. Topics: TEDTalks, TED2010, TED, Talks, God, faith, neurology, psychology, science, self, 2010
Henry Markram says the mysteries of the mind can be solved -- soon. Mental illness, memory, perception: they're made of neurons and electric signals, and he plans to find them with a supercomputer that models all the brain's 100,000,000,000,000 synapses. Topics: TEDTalks, TED, Talks, brain, computers, consciousness, mind, neurology, philosophy, technology,...
Neuroscientist Daniel Wolpert starts from a surprising premise: the brain evolved, not to think or feel, but to control movement. In this entertaining, data-rich talk he gives us a glimpse into how the brain creates the grace and agility of human motion. Topics: TEDTalks, TEDGlobal 2011, TED, Talks, biology, brain, evolution, neurology, science, 2011
Neuroscientist Vilayanur Ramachandran outlines the fascinating functions of mirror neurons. Only recently discovered, these neurons allow us to learn complex social behaviors, some of which formed the foundations of human civilization as we know it. Topics: TEDTalks, TED, Talks, biology, brain, cognitive science, evolution, neurology, science, TEDIndia...
Pawan Sinha details his groundbreaking research into how the brain's visual system develops. Sinha and his team provide free vision-restoring treatment to children born blind, and then study how their brains learn to interpret visual data. The work offers insights into neuroscience, engineering and even autism. Topics: TEDTalks, TED, Talks, biology, health care, medicine, neurology, science, sight, TEDIndia 2009, 2009